DocumentCode :
1020136
Title :
Vegetation clutter model
Author :
Ulaby, Fawwaz T.
Author_Institution :
Univ. of Kansas Center for Res. Inc., Lawrence, KS, USA
Volume :
28
Issue :
4
fYear :
1980
fDate :
7/1/1980 12:00:00 AM
Firstpage :
538
Lastpage :
545
Abstract :
The statistical behavior of the radar backscattering coefficient 
of agricultural crops is examined. The data used were obtained by the microwave active spectrometer (MAS) systems in 1975 and 1976. Based on an evaluation of the angular and spectral variation of the mean, median, and 90-percent dynamic range of the (dB) histograms, empirical expressions describing the joint angular and frequency dependence of the mean and median were generated for each linear polarization configuration. The clutter model thus generated covers the angular range between 
(nadir) and 
and the frequency range between 1 GHz and 18 GHz. Decorrelation of with frequency spacing was also evaluated and modeled.
of agricultural crops is examined. The data used were obtained by the microwave active spectrometer (MAS) systems in 1975 and 1976. Based on an evaluation of the angular and spectral variation of the mean, median, and 90-percent dynamic range of the (dB) histograms, empirical expressions describing the joint angular and frequency dependence of the mean and median were generated for each linear polarization configuration. The clutter model thus generated covers the angular range between (nadir) and and the frequency range between 1 GHz and 18 GHz. Decorrelation of with frequency spacing was also evaluated and modeled.Keywords :
Agriculture mapping; Radar imaging/mapping; Backscatter; Clutter; Crops; Dynamic range; Frequency dependence; Histograms; Polarization; Radar; Spectroscopy; Vegetation;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1980.1142377
Filename :
1142377
Link To Document :
